Rock-carrying steam-shovel dipper.



5.1. MOYNQHAN.

ROCK CARRWNG SEAM SHOVEL DiPPEH.

APPLICAUON man APR. 12. 19:1.

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.a Aw.. 2% l 2 SHEETIMITM'FEY Il )www mw w; Ma wal/NAN cable 32 the nee'of lwl'iih is more particdescribed in United States Letters g Patent No.1,210,194, nee. ae, i916.

lItw- The. 'mode-of use of this invention will be readil seen inreferenoe to Figs. 1 and 4. il further be seen that to raise andtransport a lar e rock, shown at 33, the dipper is move backward by thedipper an e so as 'to cause the lower portion of the front of the dipperto engage the lower surface of the rock and the side of the rock 1sengaged by the side walls of the dipper, and then the supporter isallowed to swing on its hinges until it engages the side of the rockopposite to that engaged by the dipper, and is retained in that positionby means of the pawls engaging thel racks. The rock is nowv raised andtransported, to the place d'- sired, as, :tor instance, to the top of afiatear,and then the rock is first deposited upon the surface of thecar, so as to withdraw the greater portion of its weight from the sup#orter, and then the pawls are withdrawn rom the racks by the regulartrip line and the supporter allowed to swing open and the whole of therock is deposited upon the car,

.'free from the dipper.

' dipper, and means located on the side of the dipper and adapted' toengage said exsaid supporter remote from the dipper for preventing thesupporter swinging away romthe dipper.

2. A dipper comprising sides, a back, a front having a downwardextension below said sides and bach, a snpporter hinged to messentension at a point sufficiently below the dipper to leave an openingtherebetween to carry a rock too large to be contained in the' dipper,and a removable support section at thehback of said support and carriedtherew1t 3. In a di per, the combination of a dipper body an a supporterpivoted thereto by hinges of such size and form that said supportercannot close the bottom of said dipper, and means located on the side ofsaid supporter remote from the dipper for preventing the supporterswinging away from the dipper. I

4. In a steam shovel dipper comprising a body closed at the front, backand sides and open at the top and bottom and a supporter hinged t0 thebody behind the back, the front of the body extending below the sidesand having means for engaging the supporter at a distance below thesides greater than the depth of the dipper body.

5. In a steam shovel dipper comprising a body closed at the front, backand sides und open at the top and bottom and a sup orter hinged to thebody behind the bac t, the front of the body extending below the sidesand having means for engaging the supporter at a distance below thesides greater than the depth of the dipper body and a removable Wearingplate secured to the lower edge of the front of the dipper.

6. A steam shovel dipper comprising a body closed at the front, back andsides and open at the top and bottom, and a sup orter hinged to saidbody behind the bac the front of the body extending below the sides andhaving means for engaging the sup-I porter at a distance below the sidesgreater 'than the depth of the dipper body, the back of the ,body havinga bearing for pivoting the bail of the dipper.

' E. J. MOYNIHAN.

